engine runs erratic at steady speed
40

Asked by Eugene May 30, 2015 at 07:14 PM about the 1991 Mitsubishi 3000GT VR-4 Turbo AWD

Question type: Maintenance & Repair

2 Answers
103,735

Reelin68 answered 9 years ago

Is the Check engine light on? Being that old, I would start by getting some throttle body cleaner and remove the throttle body, dismantle it and clean it. Remove the IAC, I don't think those you can tear down and clean. Looks like a sealed unit. You can try or buy a new one. Pull a couple of plugs. If they look black. I would replace your ECT.

Mark helpful
200,965

dandyoun answered 9 years ago

Check for vacuum and boost leaks. Also check fuel pump operation. And fuel pressure.

Mark helpful

Your Answer:

Related Questions

  • engine runs erratic at steady speed 2 Answers

    1991 Mitsubishi 3000GT VR-4 Turbo AWD

    -

    Maintenance & Repair

  • engine question can a SL engine parts be used on a VR4 to get the Twin Turbo rebuilt ? 4 Answers

    I have a 91 VR4, with a bad engine not exactly sure whats wrong, if i get a totaled 3000gt sl with good engine could both engines be used to rebuild the Twin Turbo

    1991 Mitsubishi 3000GT VR-4 Turbo AWD

    -

    Maintenance & Repair

  • Mitsubishi 3000 GT 1994 keep shutting off check engine light comes on help 2 Answers

    Hi my Mitsubishi 3000 GT 1994 was running great purchase the new battery everything was fine disconnected the memory box to my alarm car now would start just fine but now my windows fog up kind o...

    1994 Mitsubishi 3000GT SL FWD

    -

    Maintenance & Repair

  • Engine Swapping from an Auto to a Manual Transmission 1 Answer

    I own a 95 Mitsubishi 3000gt. Base model. It's an automatic. Im looking to buy a parts car which is a 98 Mitsubishi 3000gt. This is a manual transmission. The parts car has a motor that knocks and...

    1995 Mitsubishi 3000GT SL FWD

    -

    Maintenance & Repair

  • 95 3000gt vr4 engine in a 92 1 Answer

    Hi all I’m looking to replace the motor that keeps spinning bearings in my 92 vr4, I found a donor 95 gto that has been wrecked pretty bed but engine looks good, question is will a 95 motor fit in...

    1992 Mitsubishi 3000GT VR-4 Turbo AWD

    -

    Maintenance & Repair

Own this car?

Share your experience with others.

1991 Mitsubishi 3000GT

Write a car review

Review another car

Shortcuts

Search Mitsubishi 3000GT Questions

CarGurus Experts

  • #1
    dandyoun
    Reputation
    3,930
  • #2
    Daniel Foster
    Reputation
    1,740
  • #3
    David Girard
    Reputation
    440
View All

Know more, shop wisely

Search

Related Models For Sale

Used Mitsubishi Eclipse
83 listings starting at $2,495
Used Mitsubishi Lancer Evolution
17 Great Deals out of 161 listings starting at $13,300
Used Chevrolet Corvette
802 Great Deals out of 14,500 listings starting at $4,999
Used Dodge Stealth
14 listings
Used Ford Mustang
939 Great Deals out of 19,771 listings starting at $1,950
Used Toyota Supra
33 Great Deals out of 586 listings starting at $35,095
Used Nissan 300ZX
61 listings starting at $16,500
Used Chevrolet Camaro
656 Great Deals out of 8,335 listings starting at $3,240
Used Acura Integra
62 Great Deals out of 5,186 listings starting at $22,888
Used Toyota MR2
15 listings

Used Cars For Sale

1998 Mitsubishi 3000GT VR-4 Turbo AWD For Sale
1 listing
1997 Mitsubishi 3000GT VR-4 Turbo AWD For Sale
1 listing
1996 Mitsubishi 3000GT VR-4 Turbo AWD For Sale
1 listing

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.